Shoe tree



FIG. 1 is a perspective view of a right shoe tree showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a bottom view thereof.

The left shoe tree is a mirror-image of the right shoe tree. 

The ornamental design for a shoe tree, as shown and described. 